RE: 6x12 format lens

[Dgling@xxxxxxx]

For panoramic photos, the diagonal film distance as *standard* focal length 
might not apply.  For example:

6x12     diagonal  134mm
6x17     diagonal  180mm
6x24     diagonal  247mm

I think 90mm lens seems to be a popular one for 6x17 cameras, while 75mm for 
6x12 cameras and 120mm for 6x24 cameras!?

==============================

In a message dated 11/11/99 1:21:25 PM, cirkutoz@xxxxxxxxxxx writes:

>Draw a rectangle 60mm x 120mm and measure the diagonal distance (between
>one set
>of corners)  That distance will give you the "standard" focal length lens
>for
>that size of film
>
>Colin
>
>"John Dorio (EUS)" wrote:
>
>> anyone want to comment what is the most suitable focal length for the
>6x12
>> format? I think that a 90mm SA is optimum for most scenes. Please share
>your
>> views concerning this common format.
>>
>> John